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Paranasal sinus mucocele is the cystic formation lined by inflammatory changed mucoperiosteum. This is slow-growing pathology with a tendency to bone erosion. The symptoms are dependent on the direction of the penetration, and are as follows: increasing headaches, deformations of frontal or orbital region, ophthalmic manifestations such as lacrimation, decreased visual acuity, exophthalmos, ocular...
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